Enhancing Detection Sensitivity of ZnO-Based Infrared Plasmonic Sensors Using Capped Dielectric Ga

Autor: Yasuhiro, Kuranaga, Hiroaki, Matsui, Akifumi, Ikehata, Yuta, Shimoda, Makoto, Noiri, Ya-Lun, Ho, Jean-Jacques, Delaunay, Yuji, Teramura, Hitoshi, Tabata
Rok vydání: 2022
Zdroj: ACS applied bio materials. 3(9)
ISSN: 2576-6422
Popis: Surface plasmon resonances on Ga-doped ZnO (ZnO/Ga) layer surfaces (ZnO-SPRs) have attracted substantial attention as alternative plasmonic materials in the infrared range. We present further enhancement of the detection limits of ZnO-SPRs to monitor biological interactions by introducing thin dielectric layers into ZnO-SPRs, which remarkably modify the electric fields and the corresponding decay lengths on the sensing surfaces. The presence of a high-permittivity dielectric layer of Ga
Databáze: OpenAIRE